/* HELIO simulator controls, extracted from product-preview.css (claude/simulator-gap-perf 4a6c9a2).
 * Only the rules the simulator UI uses; page chrome lives in site.css. Every colour is a token here,
 * the old purple and lime accents map to the Refract pool blue, and the overlay blur is gone. */
:root{--sim-c-bg:oklch(15% 0.008 150);--sim-panel:oklch(18% 0.008 150);--sim-ink:oklch(95% 0.012 110);--sim-muted:oklch(78% 0.012 110);--sim-line:oklch(33% 0.012 130);--sim-accent:oklch(78% 0.1 234);--sim-accent-ink:oklch(17% 0.02 245);--sim-overlay:oklch(14% 0.01 150 / 0.78);--sim-c1:#0a0d0b;--sim-c2:#1b2721;--sim-c3:#090c0a;--sim-c4:#bcc8bb;--sim-c5:#566050;--sim-c6:#101610d9;--sim-c7:#303b27;--sim-c8:#939b87;--sim-c9:oklch(58% 0.012 130);--sim-c10:#293024;--sim-c11:#11170a;--sim-c12:#0005;--sim-c13:#e8fbff;--sim-c14:#73caff;--sim-c15:#b874fc;--sim-c16:#ff6bb6;--sim-c17:#d6ff65;--sim-c18:#324410;--sim-c19:#1d1c2a;--sim-c20:#101018;--sim-c21:#101510;--sim-c22:#11160d;--sim-c23:#f5f4ed;--sim-c24:#d9ded550;--sim-c25:#10141055;--sim-c26:oklch(10% 0.005 150);--sim-c27:#101410aa;--sim-c28:oklch(98% 0.005 110);--sim-c29:#101410eb;--sim-c30:#10141066;--sim-c31:#151713;}
.playground{--sim-inset:var(--space-md);--sim-col:320px;--sim-legend:20px;--bg:var(--sim-c-bg);--panel:var(--sim-panel);--ink:var(--sim-ink);--muted:var(--sim-muted);--line:var(--sim-line);--accent:var(--sim-accent)}
.playground canvas:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
.experience{border:1px solid var(--line);background:var(--sim-c1)}
.renderer{position:relative;width:100%;height:clamp(390px,53vw,760px);overflow:hidden;background:radial-gradient(ellipse at 50% 45%,var(--sim-c2),var(--sim-c3) 75%)}
.playground canvas{width:100%;height:100%;display:block;touch-action:none}
.renderer p{pointer-events:none;position:absolute;margin:0}
#status{top:22px;left:24px;font-size:14px;color:var(--muted);max-width:calc(100% - 300px)}
.scene-label{left:24px;bottom:21px;font-size:14px;color:var(--sim-c4)}
.scene-label span{color:var(--accent);padding:0 var(--space-xs)}
.view-actions{position:absolute;right:16px;top:14px;display:flex;gap:var(--space-xs)}
.view-actions button{min-height:44px;padding:var(--space-xs) var(--space-sm);border:1px solid var(--sim-c5);background:var(--sim-c6);color:var(--ink);font-size:14px;transition:background .18s,border-color .18s}
.view-actions button:hover{background:var(--sim-c7);border-color:var(--accent)}
.controls{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1.5fr .65fr;gap:var(--space-lg);background:var(--panel);padding:var(--space-lg);border-top:1px solid var(--line)}
.control-group{margin:0;padding:0;border:0;min-width:0}
.playground legend,.range>span{padding:0;margin:0 0 var(--space-sm);font-size:14px;color:var(--sim-c8);display:block}
.playground legend span,.range b{font-size:14px;font-weight:400;color:var(--ink);margin-left:var(--space-xs)}
.button-row{display:flex;gap:var(--space-xs);flex-wrap:wrap}
.button-row button{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-xs);min-height:44px;border:1px solid var(--sim-c9);background:transparent;color:var(--ink);font-size:14px;padding:var(--space-xs) var(--space-sm);transition:background .18s,border-color .18s,color .18s}
.button-row button:hover{border-color:var(--accent);background:var(--sim-c10)}
.button-row button.active{background:var(--accent);border-color:var(--accent);color:var(--sim-accent-ink)}






.range{align-self:start;min-width:0}
.range input{accent-color:var(--accent);width:100%;max-width:210px;height:44px;margin:0;cursor:pointer}
@media(min-width:1450px){.button-row{flex-wrap:wrap}}
@media(max-width:1000px){.controls{grid-template-columns:1fr 1fr;gap:var(--space-lg)}
.range{grid-column:1/-1;display:flex;align-items:center;gap:var(--space-lg)}
.range>span{margin:0;min-width:90px}
.range input{max-width:260px}}
@media(max-width:640px){.experience{margin:0 calc(-1 * var(--space));border-left:0;border-right:0}
.renderer{height:440px}
.controls{padding:var(--space-lg) var(--space);grid-template-columns:1fr;gap:var(--space-lg)}
.range{grid-column:1}
.button-row{gap:var(--space-xs)}
.button-row button{padding:var(--space-xs) var(--space-md)}
.view-actions{right:13px;top:48px}
.view-actions button{min-height:44px;font-size:14px}
#status{top:20px;left:22px;max-width:calc(100% - 44px);font-size:14px}
.scene-label{left:22px;font-size:14px}}
@media(max-width:640px){.colours .button-row{display:grid;grid-template-columns:1fr 1fr}
.colours .button-row button{justify-content:flex-start;padding-left:var(--space-md)}}
@media(max-width:640px){.view-actions{top:12px}
#status{top:25px;max-width:145px;font-size:14px}}
.renderer canvas{cursor:grab}
.renderer canvas:active{cursor:grabbing}
.sim-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-lg);pointer-events:none;z-index:1;background:radial-gradient(circle at center,var(--sim-c19) 0,var(--sim-c20) 32%,var(--sim-c3) 72%)}
.sim-loader-ring{position:relative;display:block;width:78px;height:78px;border:2px solid color-mix(in oklab, var(--sim-accent) 19%, transparent);border-top-color:var(--accent);border-right-color:color-mix(in oklab, var(--sim-accent) 52%, transparent);border-radius:50%;animation:sim-loader-spin 1.8s linear infinite}
.sim-loader-ring::after{content:"";position:absolute;inset:18px;border-radius:50%;background:radial-gradient(circle at 35% 30%,var(--sim-accent),var(--sim-accent) 48%,var(--sim-accent) 100%);box-shadow:0 0 36px color-mix(in oklab, var(--sim-accent) 40%, transparent)}
.sim-loader-logo{display:block;width:clamp(110px,14vw,150px);height:auto;opacity:.9}
@keyframes sim-loader-spin{to{transform:rotate(360deg)}}
.renderer.is-rendered .sim-placeholder{display:none}
@media(prefers-reduced-motion:reduce){.sim-loader-ring{animation:none}}
#status,.scene-label,.view-actions{z-index:2}
.view-actions{top:auto;bottom:45px;right:18px;max-width:calc(100% - 36px);flex-wrap:wrap;justify-content:flex-end}
#status{top:18px;left:20px;max-width:calc(100% - 40px);font-size:14px}
.animation-label{display:block;font-size:14px;color:var(--muted);margin:var(--space-md) 0 var(--space-2xs)}
.playground select{width:100%;min-height:44px;max-width:340px;padding:var(--space-xs) var(--space-sm);background:var(--sim-c21);border:1px solid var(--sim-c9);color:var(--ink);font:inherit;font-size:14px;cursor:pointer}
.playground select:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
@media(max-width:640px){.renderer{height:520px}
.view-actions{top:auto;bottom:44px;right:14px;gap:var(--space-2xs)}
.view-actions button{font-size:14px;padding:var(--space-xs) var(--space-xs)}
#status{top:17px;left:18px;max-width:calc(100% - 36px);font-size:14px}
.scene-label{left:18px;bottom:18px}
.colours .button-row{grid-template-columns:repeat(2,minmax(0,1fr))}
.colours .button-row button{padding:var(--space-xs) var(--space-2xs);justify-content:center}}
.controls{grid-template-columns:1fr 1.3fr 1fr .7fr}
.sizes .button-row{display:grid;grid-template-columns:repeat(3,1fr)}
.size-note{font-size:14px;line-height:1.5;color:var(--muted);margin:var(--space-sm) 0 0}
.settings .button-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.settings .button-row button{padding-left:var(--space-xs);padding-right:var(--space-xs)}
@media(max-width:1200px){.controls{grid-template-columns:1fr 1fr}
.range{grid-column:auto}}
@media(max-width:640px){.controls{grid-template-columns:1fr}
.sizes .button-row{display:grid;grid-template-columns:repeat(3,1fr)}
.sizes .button-row button{padding:var(--space-xs) var(--space-2xs)}}
#mic-toggle{margin-top:var(--space-xs);width:100%;min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-xs);border:1px solid var(--sim-c9);background:transparent;color:var(--ink);font-size:14px;padding:var(--space-xs) var(--space-sm);font-family:inherit;transition:background .18s,border-color .18s,color .18s}
#mic-toggle:hover{border-color:var(--accent);background:var(--sim-c10)}
#mic-toggle[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--sim-accent-ink)}
#mic-status{font-size:14px;line-height:1.5;margin:var(--space-xs) 0}
#mic-level{width:100%;height:8px;display:block}
.light-controls{display:grid;gap:var(--space-sm)}
.fill-toggle{display:flex;align-items:center;gap:var(--space-xs);font-size:14px;color:var(--muted);cursor:pointer}
.fill-toggle input{width:17px;height:17px;accent-color:var(--accent)}
#camera-pan[aria-pressed="true"]{background:var(--accent);color:var(--sim-accent-ink);border-color:var(--accent)}
.room-lighting{grid-column:1/-1}
.room-lighting legend output{margin-left:var(--space-sm);color:var(--ink);font-size:14px;letter-spacing:0}
.room-lighting .button-row{display:flex;flex-wrap:wrap}
.room-time-label{display:block;font-size:14px;margin-top:var(--space-sm)}
.room-lighting input[type=range]{display:block;width:100%;max-width:440px;height:44px;accent-color:var(--accent)}
.room-lighting .fill-toggle{display:flex;gap:var(--space-xs);align-items:center;font-size:14px}
.room-lighting input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent)}
.controls{gap:var(--space-sm) var(--space-md);padding:var(--space-md) var(--space-md)}
.room-controls{display:flex;align-items:center;gap:var(--space-sm);flex-wrap:wrap}
.room-lighting .room-time-label{display:flex;align-items:center;gap:var(--space-xs);margin:0}
.room-lighting input[type=range]{width:clamp(140px,24vw,300px);height:44px}
.room-lighting .fill-toggle{white-space:nowrap}
.room-lighting>.size-note{margin-top:var(--space-3xs);line-height:1.4}
.control-group legend{margin-bottom:var(--space-2xs)}
.size-note{line-height:1.4}
@media(max-width:640px){.controls{grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-sm) var(--space-sm);padding:var(--space-md) var(--space-sm)}
.room-lighting{grid-column:1/-1}
.room-controls{display:grid;grid-template-columns:auto minmax(0,1fr);gap:var(--space-xs) var(--space-sm)}
.room-lighting .room-time-label{grid-column:1/-1;grid-row:2;display:grid;grid-template-columns:auto minmax(0,1fr)}
.room-lighting input[type=range]{width:100%;max-width:none}
.room-lighting .fill-toggle{grid-column:2;grid-row:1;white-space:normal}}
@media(max-width:640px){.controls>.settings,.controls>.colours{grid-column:1/-1}
.settings .button-row{grid-template-columns:repeat(3,minmax(0,1fr))}
.colours .button-row{grid-template-columns:repeat(3,minmax(0,1fr))}
.controls>.sizes{grid-column:1/-1}
.range{display:block}
.range input{width:100%}}
.sim-stage{position:relative;isolation:isolate}
.sim-stage .sim-quick,.sim-stage .sim-diameters,.sim-stage .sim-mounts{position:absolute;z-index:3;margin:0;padding:0;border:0;min-width:0;color:var(--sim-c23);font-size:14px}
.sim-stage .sim-quick{right:var(--sim-inset);bottom:var(--sim-inset);width:190px;max-width:30%}
.sim-stage .sim-primary{display:grid;gap:var(--space-2xs)}
.sim-stage .sim-primary>:last-child:nth-child(odd){grid-column:1/-1}
.sim-stage button,.sim-stage summary{min-height:44px;font:inherit;color:inherit;border:1px solid var(--sim-c24);background:var(--sim-overlay);padding:var(--space-xs) var(--space-sm);text-align:left;text-shadow:0 1px 3px var(--sim-c26)}
.sim-stage button:hover,.sim-stage summary:hover{background:var(--sim-c27);border-color:var(--sim-accent)}
.sim-stage button.active,.sim-stage button[aria-pressed=true]{background:color-mix(in oklab, var(--sim-accent) 15%, transparent);color:var(--sim-accent);border-color:var(--sim-accent);text-shadow:0 1px 3px var(--sim-c26)}
.sim-stage legend{color:var(--sim-c28);font-size:14px;line-height:var(--sim-legend);margin:0 0 var(--space-2xs);padding:0;text-shadow:0 1px 4px var(--sim-c26)}
.sim-stage legend span{color:inherit;margin-left:var(--space-2xs)}
.sim-stage .sim-diameters{top:var(--sim-inset);left:var(--sim-inset);width:var(--sim-col);max-width:40%}
.sim-stage .sim-config{position:absolute;z-index:3;top:var(--sim-inset);left:var(--sim-inset);width:var(--sim-col);max-width:40%;display:grid;gap:var(--space-xs)}
.sim-stage .sim-config .sim-diameters{position:static;width:auto;max-width:none}
.sim-stage .sim-coating{margin:0;padding:0;border:0;min-width:0;color:var(--sim-c23);font-size:14px}
.sim-stage .sim-coating legend{padding:0;line-height:var(--sim-legend);text-shadow:0 1px 3px var(--sim-c26)}
.sim-stage .sim-coating .button-row{display:grid;grid-template-columns:auto minmax(0,1fr);gap:var(--space-2xs)}
.sim-stage .sim-coating button{padding:var(--space-xs) var(--space-2xs);text-align:center;white-space:normal}
.sim-stage .sim-music{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:var(--space-2xs)}
.sim-stage .sim-music[hidden]{display:none}
.sim-stage .sim-music__label{grid-column:1/-1;font-size:13px;text-shadow:0 1px 3px var(--sim-c26)}
.sim-stage .sim-music button{padding:var(--space-2xs);font-size:13px;line-height:1.2;text-align:center}
.sim-stage .sim-diameters .button-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-2xs)}
.sim-stage .sim-diameters button{padding:var(--space-xs) var(--space-2xs);text-align:center;white-space:normal}
.sim-stage .sim-mounts{left:var(--sim-inset);bottom:var(--sim-inset);max-width:40%;width:var(--sim-col)}
.sim-stage .sim-mounts .button-row{display:flex;flex-wrap:wrap;gap:var(--space-2xs)}
.sim-stage .sim-mounts button{flex:1 1 90px}
.sim-stage .sim-more{margin-top:var(--space-2xs);padding:0;border:0;background:transparent}
.sim-stage .sim-mic{display:grid;gap:4px;margin-top:var(--space-2xs)}
.sim-stage .sim-mic #mic-toggle{margin:0;justify-content:flex-start;text-align:left;white-space:normal;line-height:1.3}
.sim-stage .sim-mic #mic-level{height:4px;accent-color:var(--accent)}
.sim-stage .sim-mic:has(#mic-toggle[aria-pressed="false"]) #mic-level{display:none}
.sim-stage .sim-mic #mic-status{margin:0;font-size:12px;line-height:1.35;text-shadow:0 1px 3px var(--sim-c26)}
.sim-stage .sim-more>summary{display:block;list-style:none;font-size:14px;letter-spacing:0;text-transform:none;cursor:pointer}
.sim-stage .sim-more>summary::after{content:' +';float:right}
.sim-stage .sim-more[open]>summary::after{content:' −'}
.sim-stage .sim-more>summary::-webkit-details-marker{display:none}
.sim-stage .sim-more>.light-controls-content,.sim-stage .sim-more>.colours{position:absolute;right:calc(100% + 8px);bottom:0;width:300px;display:block;max-height:300px;overflow:auto;overscroll-behavior:contain;padding:var(--space-xs);background:var(--sim-c29);border:1px solid var(--sim-c24)}
.sim-stage .sim-more .light-patterns,.sim-stage .sim-more .button-row{display:flex;flex-wrap:wrap;gap:var(--space-2xs)}
.sim-stage .sim-more .light-patterns button,.sim-stage .sim-more .button-row button{font-size:14px;flex:1 1 90px}
.sim-stage .sim-more label{display:block;margin-block:var(--space-xs)}
.sim-stage .sim-more .range input{width:100%}
.sim-stage .sim-more .animation-library{margin-top:var(--space-sm)}
.sim-stage #status{top:224px;left:var(--sim-inset);max-width:min(var(--sim-col),40%);font-size:13px;background:var(--sim-c30);padding:var(--space-2xs) var(--space-xs)}
.sim-stage .view-actions{z-index:3;right:var(--sim-inset);top:calc(var(--sim-inset) + var(--sim-legend) + var(--space-2xs));bottom:auto;max-width:calc(100% - var(--sim-col) - 3 * var(--sim-inset));gap:var(--space-2xs);flex-wrap:nowrap;justify-content:flex-end}
@media(max-width:760px){.playground{--sim-inset:var(--space-sm)}
.sim-stage .sim-config{position:static;width:auto;max-width:none;grid-column:1/-1;gap:0}
.sim-stage .sim-coating{padding:0 var(--space-sm) var(--space-sm);border-bottom:1px solid var(--sim-c9)}
.sim-stage{display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--sim-c31)}
.sim-stage>.renderer{grid-column:1/-1}
.sim-stage .sim-quick,.sim-stage .sim-diameters,.sim-stage .sim-mounts{position:static;max-width:none;width:auto;margin:0;padding:var(--space-sm);grid-column:1/-1;font-size:14px}
.sim-stage .sim-quick{border-bottom:1px solid var(--sim-c9)}
.sim-stage .sim-primary{grid-template-columns:repeat(2,minmax(0,1fr))}
.sim-stage .sim-diameters{padding-bottom:var(--space-2xs)}
.sim-stage .sim-diameters .button-row{grid-template-columns:repeat(3,minmax(0,1fr))}
.sim-stage .sim-diameters .button-row button{grid-column:auto}
.sim-stage .sim-mounts{padding-top:var(--space-xs);border-bottom:1px solid var(--sim-c9)}
.sim-stage .sim-more>.light-controls-content,.sim-stage .sim-more>.colours{position:static;width:auto;max-height:360px}
.sim-stage #status{top:var(--space-2xl);left:var(--sim-inset);max-width:calc(100% - 2 * var(--sim-inset));font-size:13px}
.sim-stage .view-actions{top:auto;bottom:var(--sim-inset);left:var(--sim-inset);right:var(--sim-inset);max-width:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.sim-stage .view-actions button{text-align:center;min-height:44px;font-size:14px}}
/* Browsers hold the music back until the first click: bottom centre of the view, above the view buttons on a phone. */
.sim-stage .sim-sound-hint{position:absolute;z-index:4;left:50%;bottom:var(--sim-inset);transform:translateX(-50%);display:inline-flex;align-items:center;gap:var(--space-xs);width:max-content;padding:var(--space-2xs) var(--space-md);border:0;border-radius:999px;background:var(--sim-accent);color:var(--sim-accent-ink);font-size:15px;font-weight:600;text-align:center;text-shadow:none;box-shadow:0 6px 24px oklch(0% 0 0 / 45%);animation:sim-sound-hint-in .4s ease-out}
.sim-stage .sim-sound-hint[hidden]{display:none}
.sim-stage .sim-sound-hint:hover{background:var(--sim-accent);color:var(--sim-accent-ink);filter:brightness(1.08)}
@keyframes sim-sound-hint-in{from{opacity:0;transform:translate(-50%,8px)}}
.sim-stage .sim-sound-hint.is-jiggling{animation:sim-sound-hint-jiggle 4s ease-in-out infinite}
@keyframes sim-sound-hint-jiggle{0%,14%,100%{transform:translateX(-50%) rotate(0) scale(1)}2%{transform:translateX(-50%) rotate(-6deg) scale(1.08)}4.5%{transform:translateX(-50%) rotate(6deg) scale(1.08)}7%{transform:translateX(-50%) rotate(-5deg) scale(1.05)}9.5%{transform:translateX(-50%) rotate(4deg) scale(1.03)}12%{transform:translateX(-50%) rotate(-2deg) scale(1)}}
@media(prefers-reduced-motion:reduce){.sim-stage .sim-sound-hint,.sim-stage .sim-sound-hint.is-jiggling{animation:none}}
@media(max-width:760px){.sim-stage .sim-sound-hint{bottom:calc(var(--sim-inset) + 2 * 44px + 2 * var(--space-xs))}}
/* The bar under the view. One grid: the first column is the width of the Diameter and Setting panels
 * above it, every label sits on one line, every control on the next, and both edges match the overlay. */
.sim-toolbar{padding:var(--space-md) var(--sim-inset) var(--space-sm);background:var(--panel,var(--sim-c31));border-top:1px solid var(--line,var(--sim-c9))}
.sim-essentials{display:grid;grid-template-columns:var(--sim-col) minmax(0,1fr) auto auto;gap:var(--space-sm) var(--space-lg);align-items:end}
.sim-brightness{display:block;align-self:end;min-width:0;margin:0;padding:0}
.sim-brightness>span{display:flex;align-items:baseline;justify-content:space-between;margin:0 0 var(--space-2xs);font-size:14px;line-height:var(--sim-legend);color:var(--sim-c8);white-space:nowrap}
.sim-brightness b{margin:0}
.sim-brightness input{display:block;width:100%;max-width:none;height:44px;accent-color:var(--accent)}
.sim-essentials .auto-cycle-lights{grid-column:3;display:flex;align-items:center;gap:var(--space-xs);margin:0 0 0 var(--space-md);min-height:44px;font-size:14px;white-space:nowrap}
.sim-essentials input[type=checkbox],.sim-toolbar .fill-toggle input{width:18px;height:18px;margin:0;accent-color:var(--accent)}
.sim-essentials .cycle-toggle{grid-column:4}
.sim-toolbar button,.sim-stage .sim-toolbar button{min-height:44px;margin:0;padding:var(--space-xs) var(--space-sm);font:inherit;font-size:14px;line-height:1.2;color:var(--ink);text-align:center;text-shadow:none;background:transparent;border:1px solid var(--sim-c9);cursor:pointer;transition:background .18s,border-color .18s,color .18s}
.sim-toolbar button:hover,.sim-stage .sim-toolbar button:hover{background:var(--sim-c10);border-color:var(--accent)}
.sim-toolbar .room-lighting{grid-column:2;min-width:0;margin:0;padding:0;border:0}
.sim-toolbar .room-lighting legend{margin:0 0 var(--space-2xs);padding:0;font-size:14px;line-height:var(--sim-legend);color:var(--sim-c8);text-shadow:none;white-space:nowrap}
.sim-toolbar .room-lighting legend output{margin-left:var(--space-xs);color:var(--ink)}
.sim-toolbar .room-lighting>.size-note{display:none}
.sim-toolbar .room-controls{display:flex;flex-wrap:nowrap;align-items:center;gap:var(--space-md)}
.sim-toolbar .room-controls>.button-row{flex:none;flex-wrap:nowrap;gap:var(--space-2xs)}
.sim-toolbar .room-time-label{display:flex;flex:1 1 auto;align-items:center;gap:var(--space-xs);min-width:0;margin:0;font-size:14px;color:var(--sim-c8)}
.sim-toolbar .room-lighting input[type=range]{flex:1 1 auto;width:auto;min-width:0;max-width:none;height:44px;margin:0}
.sim-toolbar .fill-toggle{display:flex;flex:none;align-items:center;gap:var(--space-xs);margin:0;font-size:14px;color:var(--ink);white-space:nowrap}
.sim-toolbar>.sim-feasibility{margin:var(--space-sm) 0 0;font-size:13px;line-height:1.4;color:var(--muted)}
.sim-options{background:var(--panel,var(--sim-c31));border-top:1px solid var(--line,var(--sim-c9))}
.sim-options>summary{display:flex;align-items:center;min-height:44px;padding:var(--space-2xs) var(--sim-inset);gap:var(--space-sm);color:var(--ink);font-size:14px;cursor:pointer;list-style:none}
.sim-options>summary::-webkit-details-marker{display:none}
.sim-options>summary::after{content:'+';margin-left:auto;color:var(--accent)}
.sim-options[open]>summary::after{content:'−'}
.sim-options>.sim-controls,.sim-options>.controls{border-top:0;padding:var(--space-2xs) var(--sim-inset) var(--space-md);grid-template-columns:var(--sim-col) minmax(0,1fr) auto;gap:var(--space-sm) var(--space-lg);align-items:start}
.sim-options .coating legend{line-height:var(--sim-legend)}
.sim-options .cycle-help{margin:0;font-size:14px;line-height:1.5;max-width:64ch}
.sim-options .light-controls{gap:var(--space-2xs)}
.sim-options .fill-toggle{min-height:32px}
.sim-options .fill-toggle input{width:18px;height:18px;margin:0}
.sim-options .button-row button.active{background:color-mix(in oklab, var(--sim-accent) 15%, transparent);color:var(--sim-accent);border-color:var(--sim-accent)}
.ar-preview-link{padding:var(--space-xs) var(--sim-inset)!important;margin:0!important}
/* Not room for all four on one line: the tour moves below, flush right. Outdoors, without the room light, it stays up. */
@media(max-width:1240px){.sim-toolbar .room-lighting{grid-column:2/-1}
.sim-essentials .auto-cycle-lights{grid-row:2;margin-left:0}
.sim-essentials .cycle-toggle{grid-row:2}
.sim-essentials:has(>#room-lighting[hidden]) .auto-cycle-lights,.sim-essentials:has(>#room-lighting[hidden]) .cycle-toggle{grid-row:1}
.sim-options>.sim-controls,.sim-options>.controls{grid-template-columns:var(--sim-col) minmax(0,1fr)}
.sim-options .light-controls{grid-column:1}}
@media(max-width:960px){.playground{--sim-col:260px}
.sim-stage .view-actions button{padding-inline:var(--space-xs)}}
/* Short windows: the animations in two columns, so they stay clear of the view buttons. */
@media(min-width:761px) and (max-height:700px){.sim-stage .sim-quick{width:380px;max-width:48%}
.sim-stage .sim-primary{grid-template-columns:repeat(2,minmax(0,1fr))}
.sim-stage .sim-diameters .button-row{grid-template-columns:repeat(6,minmax(0,1fr))}
.sim-stage .sim-diameters button{padding-inline:0;font-size:13px}
.sim-stage #status{top:176px}}
@media(max-width:760px){.sim-essentials{grid-template-columns:minmax(0,1fr) auto;gap:var(--space-sm)}
.sim-brightness{grid-column:1/-1}
.sim-toolbar .room-lighting{grid-column:1/-1}
.sim-essentials .auto-cycle-lights,.sim-essentials:has(>#room-lighting[hidden]) .auto-cycle-lights{grid-column:1;grid-row:auto}
.sim-essentials .cycle-toggle,.sim-essentials:has(>#room-lighting[hidden]) .cycle-toggle{grid-column:2;grid-row:auto}
.sim-toolbar .room-controls{display:grid;grid-template-columns:auto minmax(0,1fr);gap:var(--space-2xs) var(--space-md)}
.sim-toolbar .room-controls>.button-row{grid-column:1;grid-row:1}
.sim-toolbar .room-controls>.fill-toggle{grid-column:2;grid-row:1;justify-self:end}
.sim-toolbar .room-time-label{grid-column:1/-1;grid-row:2}
.sim-toolbar .room-lighting input[type=range]{width:100%}
.sim-options>.sim-controls,.sim-options>.controls{grid-template-columns:minmax(0,1fr)}
.sim-options .light-controls{grid-column:auto}}
.sim-stage>.sim-toolbar{grid-column:1/-1}

/* Labels stay on one line at every width; a long simulator label ellipses instead of wrapping. */
.playground button{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
@media (min-width: 761px){.sim-stage .sim-more>.colours{width:440px}}
body[data-world="room"] .sim-stage .sim-mounts .button-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
body[data-world="stage"] .sim-stage .sim-mounts .button-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}